ZF 0634.309.077 SHAFT SEAL for WG180/WG200/WG201 | OEM Genuine Part

Overview

The ZF 0634.309.077 SHAFT SEAL is a critical OEM genuine component engineered for the WG180, WG200, WG201, and WG65 series transmissions. This precision seal is installed at the output shaft interface, where it prevents transmission fluid from escaping while blocking contaminants from entering the gearbox. The SKU 0634.309.077 is manufactured to ZF’s exacting tolerances, ensuring a tight, durable seal that maintains hydraulic pressure and lubricant integrity. It sits directly within the 4616101101: TRANSMISSION HOUSING, forming a barrier between the rotating shaft and the stationary housing bore.

Symptoms of Failure

When the 0634.309.077 shaft seal degrades, operators will notice distinct performance issues. Look for these specific failure symptoms to diagnose a worn seal:

• Oil leaks at the output flange: The most common sign is a steady drip or wet residue around the transmission output shaft area, often visible on the ground beneath the vehicle.
• Low transmission fluid levels: Gradual fluid loss from a failing seal can trigger low-pressure warnings or erratic shifting behavior.
• Contaminated lubricant: A compromised seal allows dirt and moisture to enter, turning the fluid dark or milky and accelerating internal wear.
• Whining or grinding noises: As the seal hardens or cracks, it may create friction against the shaft, producing audible sounds during operation.

Technical Specifications

Compatibility

This shaft seal is specifically designed for the following ZF transmission models:

• WG 180 Series – All variants requiring output shaft sealing.
• WG 200 Series – Standard fitment for WG200 gearboxes.
• WG 201 Series – Compatible with WG201 units, including high-torque configurations.
• WG 65 Series – Also applicable to WG65 transmissions where the same seal profile is used.

During installation, this seal works in conjunction with the 0636011118: HEXAGON SCREW to secure the housing cover, and it interfaces with the 4616301304: HOUSING or the 4616301309: HOUSING depending on your specific transmission variant. Always verify your housing part number before ordering.

Related Components

{
“@context”: “https://schema.org”,
“@type”: “FAQPage”,
“mainEntity”: [
{
“@type”: “Question”,
“name”: “What is the ZF 0634.309.077 shaft seal used for?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The ZF 0634.309.077 shaft seal is an OEM genuine part used in WG180, WG200, WG201, and WG65 series transmissions to prevent fluid leaks at the output shaft and keep contaminants out of the gearbox.”
}
},
{
“@type”: “Question”,
“name”: “How do I know if my 0634.309.077 seal is failing?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Common failure symptoms include oil leaks around the output flange, low transmission fluid levels, contaminated lubricant, and unusual whining or grinding noises from the transmission area.”
}
},
{
“@type”: “Question”,
“name”: “Can I install this seal without replacing the housing?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes, the seal can be replaced independently, but always inspect the housing bore for scoring or damage. You may need to replace the 4616101101 transmission housing or related components if wear is present.”
}
}
]
}

Authorized ZF Distributor

We are a certified supplier of genuine ZF components.